10 May 2021 --- Monteloeder’s proprietary, polyphenol-rich dietary ingredient, Zeropollution, may improve the signs of skin aging, strengthen skin barrier function and counteract oxidative stress, according to a new clinical study. Zeropollution is a natural extract designed for internal use and composed of four standardized botanical extracts: Olea europaea leaf, Lippia citriodora, Rosmarinus officinalis and Sophora japonica.